78835018776 has 64 divisors (see below), whose sum is σ = 210672645120. Its totient is φ = 24522727680.

The previous prime is 78835018739. The next prime is 78835018789. The reversal of 78835018776 is 67781053887.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1719040 + ... + 1764303.

It is an arithmetic number, because the mean of its divisors is an integer number (3291760080).

Almost surely, 2^78835018776 is an apocalyptic number.

It is an amenable number.

78835018776 is an abundant number, since it is smaller than the sum of its proper divisors (131837626344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78835018776 is a wasteful number, since it uses less digits than its factorization.

78835018776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483416 (or 3483412 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 60.

The spelling of 78835018776 in words is "seventy-eight billion, eight hundred thirty-five million, eighteen thousand, seven hundred seventy-six".